Hi Maciej,

Thanks for the update... Glad you've solved this issue in meantime... Unfortunately this is the problem with R&D theme, and we'll try to fix this in next theme update... Second solution to disconnect from Instagram account is to add this code to your allure child theme's functions.php file:

function eltd_instagram_widget_clear(){
update_option('eltd_instagram_code', '');
}

add_action('init', 'eltd_instagram_widget_clear');

activate child theme, than navigate to some page and that will call this function. Than delete that code, and switch back to parent theme...

Hope this will help as well. Sorry for inconvenience.